The PATIENT INFORMATION Leaflets (PILs) and Summary of Product CHARACTERISTICS sheets (SPCs) both give a full list of ingredients (usually called ‘excipients’). See the list of OILs and SPECs on our Links page. There is information about many of the ingredients FOUND in vaccines on our Vaccine Ingredients page.

Vaccine ingredients can often look unfamiliar. However, it is important to remember that many of the substances used in vaccines are found naturally in the body. All vaccine ingredients are present in extremely small quantities, and there is no evidence that any of them cause any harm in these amounts.

The Patient Information Leaflets (PILs) and Summary of Product Characteristics sheets (SPCs) both give a full list of ingredients (usually called ‘excipients’). See the list of OILs and SPECs on our Links page. There is information about many of the ingredients found in vaccines on our Vaccine Ingredients page.

Vaccine ingredients can often look unfamiliar. However, it is important to remember that many of the substances used in vaccines are found naturally in the body. All vaccine ingredients are present in extremely small quantities, and there is no evidence that any of them cause any harm in these amounts.